// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// Check that we report an error if an upcast box is moved twice.

trait Foo { fn dummy(&self); }

fn consume(_: Box<Foo>) {
}

fn foo(b: Box<Foo+Send>) {
    consume(b);
    consume(b); //~ ERROR use of moved value
}

fn main() {
}
